Question

If the mean of 5observation x,x+2,x+4,x+6,and x+8 is 11 then find the value of x.

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Answer 1

Answer:

X + X+2 + X+4 + X+6 + X+8 =11

5x + 20 = 11

5x = 11-20

5x = -9

X = -9/5

Answer 2

$\mathtt{\sf{\blue{\LARGE{\boxed{Question:--}}}}}$

If the mean of 5observation x,x+2,x+4,x+6,and x+8 is 11 then find the value of x.

$\mathtt{\sf{\red{\LARGE{\boxed{Answer:--}}}}}$

Mean = The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Mean = add of numbers / number of numbers

so,

⇨ $\sf\green{x+x+2+x+4+x+6+x+8/5 = 11}$

⇨ $\sf\green{ 5x + 20 = 11×5}$

⇨ $\sf\green{ 5x = 55-20}$

⇨ $\sf\green{ 5x = 35}$

⇨ $\sf\green{ x = 35/5}$

⇨ $\sf\green{ x = 7}$

$\mathtt{\sf{\pink{\fbox{\underline{Hence-}}}}}$

⇨value of x is$\sf\red{ x = 7}$